376,843 Works

Vegetation map of Trail Valley Creek, Northwest Territories, Canada

Inge Grünberg & Julia Boike
The vegetation map distinguishes between five tundra vegetation types, trees, and open water at the forest-tundra transition north of Inuvik, Northwest Territories, Canada. The area is underlain by continuous permafrost. Vegetation types were distinguished based on vegetation height derived from airborne laserscanning, airborne orthophotos and observations from the field site. A detailed description of the data sources and processing steps is included.

Physical oceanography (CTD) during METEOR cruise M136

Gerd Krahmann & Marcus Dengler
PO-GLOBAL-SVN = 615 used on 13-Jun-2019 11:23:57Matlab = 9.4.0.813654 (R2018a)Release = 6nc_uncertainty_p = 2.000000nc_uncertainty_t = 0.002000nc_uncertainty_s = 0.002000nc_uncertainty_o = 1.500000 Fluorescence and Turbidity data still contain deck offsets. Use with caution

Oxygen isotope ratios, elevation changes and temperature record from the Agassiz ice cap and Greenland ice sheet, supplement to: Lecavalier, Benoit; Fisher, David A; Milne, Glenn A; Vinther, Bo M; Tarasov, Lev; Huybrechts, Philippe; Lacelle, Denis; Main, Bill; Zheng, James; Bourgeois, Jocelyne; Dyke, Arthur (2017): High Arctic Holocene temperature record from the Agassiz ice cap and Greenland ice sheet evolution. Proceedings of the National Academy of Sciences, 114(23), 5952-5957

Benoit Lecavalier, David A Fisher, Glenn A Milne, Bo M Vinther, Lev Tarasov, Philippe Huybrechts, Denis Lacelle, Bill Main, James Zheng, Jocelyne Bourgeois & Arthur Dyke
We present a revised and extended high Arctic air temperature reconstruction from a single proxy that spans the past ∼12,000 y (up to 2009 CE). Our reconstruction from the Agassiz ice cap (Ellesmere Island, Canada) indicates an earlier and warmer Holocene thermal maximum with early Holocene temperatures that are 4-5 °C warmer compared with a previous reconstruction, and regularly exceed contemporary values for a period of ∼3,000 y. Our results show that air temperatures in...

The polychaete fauna of the Clarion-Clipperton Fracture Zone from boxcore samples during SONNE cruise SO239, supplement to: Bonifácio, Paulo; Martínez Arbizu, Pedro; Menot, Lenaick (in review): Alpha and beta diversity patterns of polychaete assemblages across the nodule province of the Clarion-Clipperton Fracture Zone (Equatorial Pacific). Biogeosciences Discussions, 1-38

Paulo Bonifácio, Lenka Neal, Emmanuelle Omnes, Baptiste François, Thomas G Dahlgren & Lenaick Menot
The dataset contains polychaete abundance data collected from boxcores samples (BC; 0.25 m2) collected in the eastern Clarion Clipperton fracture Zone (northeast Pacific), an area currently being explored for polymetallic nodules. Macrobenthic samples were collected onboard RV Sonne during expedition SO239 in 2015. Four exploration contract areas (BGR, IOM, GSR and Ifremer) and one “Area of Particular Environmental Interest” (APEI#3) were sampled. Between 3 and 8 quantitative box cores were collected in each area. Boxcore...

Late Maastrichtian-early Eocene bulk sediment stable carbon and oxygen isotope records from ODP Site 208-1262, South Atlantic

James S K Barnet, Kate Littler, Thomas Westerhold, Dick Kroon, Melanie J Leng, Ian Bailey, Ursula Röhl & James C Zachos

Seawater carbonate chemistry and growth rate of three phytoplankton species in response to ocean acidification

Giannina S I Hattich, Luisa Listmann, Julia Raab, Dorthe Ozod-Seradj, Thorsten B H Reusch & Birte Matthiessen
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2016) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2017-05-12.

d18O data record of espeleothems from Jaraguá cave, Brazil, 2017

Valdir Felipe Novello, Francisco William da Cruz Junior, Mathias Vuille, Nicolás M Stríkis, R Lawrence Edwards, Hai Cheng, Suellyn Emerick, Marcos Saito de Paula, Xianglei Li, Eline de Souza Barreto, Ivo Karmann & Roberto Ventura Santos

Neodymium and Strontium isotope compositions from ODP sites 166-1006 and 165-1000, supplement to: Kirillova, Valeriia; Osborne, Anne H; Störling, Tjördis; Frank, Martin (submitted): Miocene restriction of the Pacific-North Atlantic throughflow strengthened Atlantic overturning circulation. Nature Communications

Valeriia Kirillova, Anne H Osborne, Tjördis Störling & Martin Frank
Nd isotope composition of weakly cleaned foraminifera in core tops close to ODP Site 1006.12 Myr record of Nd isotopes measured in weakly cleaned foraminifera from ODP Site 1006.Record from 5.5 to 13.5 Myr of Nd isotopes measured in weakly cleaned foraminifera from ODP Site 1000.12 Myr record of Nd and Sr isotopes measured in the detrital fraction from ODP Site 1006.Record from 5.5 to 13.5 Myr of Nd and Sr isotopes measured in the...

Raw multibeam EM122 data: transits of Maria S. Merian cruise MSM68 (North Atlantic)

Vera Schlindwein & Anne-Cathrin Wölfl
Latitude/Longitude extracted from DSHIP. Data acquisition was performed using a multibeam sonar system Simrad EM-122 from Kongsberg. Raw data are delivered within Simrad current multibeam vendor format. SIMRAD raw data can be processed i.e. with the software packages CARIS HIPS/SIPS, Caraibes, QPS Qimera or with the open source software package MB-System (http://www.ldeo.columbia.edu/res/pi/MB-System/).

Composite d18O from LSF16 and LSF3 speleothems collected from Lapa Sem Fim cave, central-eastern and northeastern Brazil

Nicolás M Stríkis, Cristiano Mazur Chiessi, Francisco William da Cruz Junior, Mathias Vuille, Hai Cheng, Eline A de Souza Barreto, Sabine Kasten, Ivo Karmann, R Lawrence Edwards, Patricio A Bernal & Hamilton dos Reis Sales
The isotope records of LSF16 and LSF3 were combined in order to produce a single curve for the time period between 19.35 and 14.42 kyr BP from Lapa Sem Fim.

(Figure 3a and 3b) Globigerinoides ruber and Globorotalia truncatulinoides d18O of sediment core GeoB2107-5

Cristiano Mazur Chiessi, Stefan Mulitza, Jeroen Groeneveld, Juliana Braga Silva, Marília de Carvalho Campos & Marcio Henrique da C Gurgel

d18O speleothem record of LSF16 collected from Lapa Sem Fim cave, central-eastern Brazil

Nicolás M Stríkis, Cristiano Mazur Chiessi, Francisco William da Cruz Junior, Mathias Vuille, Hai Cheng, Eline A de Souza Barreto, Sabine Kasten, Ivo Karmann, R Lawrence Edwards, Patricio A Bernal & Hamilton dos Reis Sales

Branched and isoprenoid tetraether (BIT) index, calcium and titanium element concentration of sediment core GeoB3910-2

Nicolás M Stríkis, Cristiano Mazur Chiessi, Francisco William da Cruz Junior, Mathias Vuille, Hai Cheng, Eline A de Souza Barreto, Gesine Mollenhauer, Sabine Kasten, Ivo Karmann, R Lawrence Edwards, Patricio A Bernal & Hamilton dos Reis Sales

(Table 2) Radiocarbon dates and calibrated ages from cores GeoB2107-5 and GeoB6211-1, GeoB6211-2

Cristiano Mazur Chiessi, Stefan Mulitza, Jeroen Groeneveld, Juliana Braga Silva, Marília de Carvalho Campos & Marcio Henrique da C Gurgel
KIA: Leibniz-Laboratory for Radiometric Dating and Stable Isotope Research, Kiel, GermanyPoz: Poznan Radiocarbon Laboratory, Poznan, Poland

Variability of the Brazil Current during the late Holocene analysed on two marine sediment cores, supplement to: Chiessi, Cristiano Mazur; Mulitza, Stefan; Groeneveld, Jeroen; Silva, Juliana Braga; de Carvalho Campos, Marília; Gurgel, Marcio Henrique da C (2013): Variability of the Brazil Current during the late Holocene. Palaeogeography, Palaeoclimatology, Palaeoecology

Cristiano Mazur Chiessi, Stefan Mulitza, Jeroen Groeneveld, Juliana Braga Silva, Marília de Carvalho Campos & Marcio Henrique da C Gurgel
Our understanding of the centennial-scale variability of the Brazil Current (BC) during the late Holocene is elusive because of the lack of appropriate records. Here we used the Mg/Ca and oxygen isotopic composition of planktonic foraminifera from two marine sediment cores collected at 27° S and 33° S off southeastern South America to assess the late Holocene variability in the upper water column of the BC. Our results show in phase fluctuations of up to...

CLAM age model and pollen profile of sediment core Colonia

ACER Project Members, Maria Fernanda Sanchez Goñi, Stéphanie Desprat, Anne-Laure Daniau, Marie-Pierre Ledru, Philippe Mourguiart, Claudio Riccomini, D-D Rousseau, Francisco William da Cruz Junior, Ivo Karmann & Louis Martin

d18O speleothem record of PX7 collected from the Paixão cave, northeastern Brazil

Nicolás M Stríkis, Cristiano Mazur Chiessi, Francisco William da Cruz Junior, Mathias Vuille, Hai Cheng, Eline A de Souza Barreto, Gesine Mollenhauer, Sabine Kasten, Ivo Karmann, R Lawrence Edwards, Patricio A Bernal & Hamilton dos Reis Sales

(Figure 4) Stable carbon isotopic records of sediment core GeoB6212-1

Marília de Carvalho Campos, Cristiano Mazur Chiessi, Ines Voigt, Alberto R Piola, Henning Kuhnert & Stefan Mulitza

Boqueirão Lake, Northeastern Brazil 2,300 years dD precipitation reconstruction, supplement to: Utida, Giselle; da Cruz Junior, Francisco William; Etourneau, Johan; Bouloubassi, Ioanna; Schefuß, Enno; Vuille, Mathias; Novello, Valdir Felipe; Prado, Luciana Figueiredo; Sifeddine, Abdelfettah; Vincent, Klein; Zular, André; Viana, João Cláudio Cerqueira; Turcq, Bruno Jean (2019): Tropical South Atlantic influence on Northeastern Brazil precipitation and ITCZ displacement during the past 2300 years. Scientific Reports, 9(1), 1698

Giselle Utida, Francisco William da Cruz Junior, Johan Etourneau, Ioanna Bouloubassi, Enno Schefuß, Mathias Vuille, Valdir Felipe Novello, Luciana Figueiredo Prado, Abdelfettah Sifeddine, Vincent Klein, André Zular, João Cláudio Cerqueira Viana & Bruno Jean Turcq
Recent paleoclimatic studies suggest that changes in the tropical rainbelt across the Atlantic Ocean during the past two millennia are linked to a latitudinal shift of the Intertropical Convergence Zone (ITCZ) driven by the Northern Hemisphere (NH) climate. However, little is known regarding other potential drivers that can affect tropical Atlantic rainfall, mainly due to the scarcity of adequate and high-resolution records. In this study, we fill this gap by reconstructing precipitation changes in Northeastern...

Age control of sediment core HU90-013-013

Elke Vogelsang, Michael Sarnthein & Uwe Pflaumann
more AMS 14C dates in Hillaire-Marcel et al. (1994)

(Figure 3) Age model and sedimentation rates for marine sediment core GeoB6212-1

Marília de Carvalho Campos, Cristiano Mazur Chiessi, Ines Voigt, Alberto R Piola, Henning Kuhnert & Stefan Mulitza

Experiment on inter- and intra-specific phenotypic plasticity of three phytoplankton species in response to ocean acidification, supplement to: Hattich, Giannina S I; Listmann, Luisa; Raab, Julia; Ozod-Seradj, Dorthe; Reusch, Thorsten B H; Matthiessen, Birte (2017): Inter- and intraspecific phenotypic plasticity of three phytoplankton species in response to ocean acidification. Biology Letters, 13(2), 20160774

Giannina S I Hattich, Luisa Listmann, Julia Raab, Dorthe Ozod-Seradj, Thorsten B H Reusch & Birte Matthiessen
Phenotypic plasticity describes the phenotypic adjustment of the same genotype to different environmental conditions and is best described by a reaction norm. We focus on the effect of ocean acidification (OA) on inter - and intraspecific reaction norms of three globally important phytoplankton species (Emiliania huxleyi, Gephyrocapsa oceanica, Chaetoceros affinis). Despite significant differences in growth rates between the species, they all showed a high potential for phenotypic buffering (no significant difference in growth rates between...

Swift thermal reaction norm evolution in a key coccolithopore species: Reaction norm assay data from an experiment in Kiel from December 2012 to June 2015, supplement to: Listmann, Luisa; Leroch, Maxime; Schlüter, Lothar; Thomas, Midrul K; Reusch, Thorsten B H (2016): Swift thermal reaction norm evolution in a key marine phytoplankton species. Evolutionary Applications, 9(9), 1156-1164

Luisa Listmann & Thorsten B H Reusch
Temperature has a profound effect on the species composition and physiology of marine phytoplankton, a polyphyletic group of microbes responsible for half of global primary production. Here, we ask whether and how thermal reaction norms in a key calcifying species, the coccolithophore Emiliania huxleyi, change as a result of 2.5 years of experimental evolution to a temperature about 2°C below its upper thermal limit. Replicate experimental populations derived from a single genotype isolated from Norwegian...

Experiment with salinity and bacteria on early life-stages of Western Baltic spring-spawning herring, supplement to: Poirier, Maude; Listmann, Luisa; Roth, Olivia (2017): Selection by higher-order effects of salinity and bacteria on early life-stages of Western Baltic spring-spawning herring. Evolutionary Applications

Maude Poirier, Luisa Listmann & Olivia Roth
Habitat stratification by abiotic and biotic factors initiates divergence of populations and leads to ecological speciation. In contrast to fully marine waters, the Baltic Sea is stratified by a salinity gradient that strongly affects fish physiology, distribution, diversity and virulence of important marine pathogens. Animals thus face the challenge to simultaneously adapt to the concurrent salinity and cope with the selection imposed by the changing pathogenic virulence. Western Baltic spring-spawning herring (Clupea harengus) migrate to...

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